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Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant

Authorized Users Only
2023
Authors
Nježić, Zvonko
Kostić, Milan D.
Marić, Boško D.
Stamenković, Olivera
Šimurina, Olivera D.
Krstić, Jugoslav
Veljković, Vlada B.
Article (Published version)
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Abstract
A low-cost, highly active CaO-based catalyst was prepared from waste filter cake (WFC) from a sugar beet processing factory by calcination in air at 900 °C for 2 h, referred to as the calcined filter cake (CFC). It was used to catalyze the rapeseed oil transesterification with methanol under mild reaction conditions (methanol-to-oil molar ratio of 9:1, catalyst loading of 4–10 %, and reaction temperature of 40–60 °C). Rapeseed oil was characterized regarding the physicochemical properties and fatty acid profile. Low free fatty acid content (about 2.0 mg KOH/g) allowed the direct use of the base CFC catalyst for rapeseed oil transesterification. Rapeseed oil has more unsaturated fatty acids (about 93 %), with oleic acid as the most abundant, than saturated fatty acids (about 7 %). A simplified model combining the changing mechanism of the reaction and the triacylglycerols mass transfer limitation successfully describes the kinetics of transesterification. A good agreement between the mo...del and the experiment was proved by the mean relative percentage deviation for the conversion degree of only ± 7.43 % (based on 42 data). The apparent reaction rate constant follows the Arrhenius equation with the activation energy of 51.9 kJ mol−1. The FAME content higher than 96.5 % can be obtained in wide ranges of the catalyst amount (4–10 %) and the reaction time (about 45–70 min). The following conditions were optimum: the reaction temperature of 59.2 °C, the catalyst loading of 9.1 % (based on the oil weight), and the reaction time of 47 min.

Keywords:
Biodiesel / Calcination / Kinetic modeling / Statistical optimization / Transesterification / Waste filter cake
Source:
Fuel, 2023, 334, 126581-
Publisher:
  • Elsevier
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200133 (Univeristy of Niš, Faculty of Technology, Leskovac) (RS-200133)
  • The Serbian Academy of Sciences and Arts (Project F-78)

DOI: 10.1016/j.fuel.2022.126581

ISSN: 0016-2361

Scopus: 2-s2.0-85141496754
[ Google Scholar ]
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/5399
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Nježić, Zvonko
AU  - Kostić, Milan D.
AU  - Marić, Boško D.
AU  - Stamenković, Olivera
AU  - Šimurina, Olivera D.
AU  - Krstić, Jugoslav
AU  - Veljković, Vlada B.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5399
AB  - A low-cost, highly active CaO-based catalyst was prepared from waste filter cake (WFC) from a sugar beet processing factory by calcination in air at 900 °C for 2 h, referred to as the calcined filter cake (CFC). It was used to catalyze the rapeseed oil transesterification with methanol under mild reaction conditions (methanol-to-oil molar ratio of 9:1, catalyst loading of 4–10 %, and reaction temperature of 40–60 °C). Rapeseed oil was characterized regarding the physicochemical properties and fatty acid profile. Low free fatty acid content (about 2.0 mg KOH/g) allowed the direct use of the base CFC catalyst for rapeseed oil transesterification. Rapeseed oil has more unsaturated fatty acids (about 93 %), with oleic acid as the most abundant, than saturated fatty acids (about 7 %). A simplified model combining the changing mechanism of the reaction and the triacylglycerols mass transfer limitation successfully describes the kinetics of transesterification. A good agreement between the model and the experiment was proved by the mean relative percentage deviation for the conversion degree of only ± 7.43 % (based on 42 data). The apparent reaction rate constant follows the Arrhenius equation with the activation energy of 51.9 kJ mol−1. The FAME content higher than 96.5 % can be obtained in wide ranges of the catalyst amount (4–10 %) and the reaction time (about 45–70 min). The following conditions were optimum: the reaction temperature of 59.2 °C, the catalyst loading of 9.1 % (based on the oil weight), and the reaction time of 47 min.
PB  - Elsevier
T2  - Fuel
T1  - Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant
VL  - 334
SP  - 126581
DO  - 10.1016/j.fuel.2022.126581
ER  - 
@article{
author = "Nježić, Zvonko and Kostić, Milan D. and Marić, Boško D. and Stamenković, Olivera and Šimurina, Olivera D. and Krstić, Jugoslav and Veljković, Vlada B.",
year = "2023",
abstract = "A low-cost, highly active CaO-based catalyst was prepared from waste filter cake (WFC) from a sugar beet processing factory by calcination in air at 900 °C for 2 h, referred to as the calcined filter cake (CFC). It was used to catalyze the rapeseed oil transesterification with methanol under mild reaction conditions (methanol-to-oil molar ratio of 9:1, catalyst loading of 4–10 %, and reaction temperature of 40–60 °C). Rapeseed oil was characterized regarding the physicochemical properties and fatty acid profile. Low free fatty acid content (about 2.0 mg KOH/g) allowed the direct use of the base CFC catalyst for rapeseed oil transesterification. Rapeseed oil has more unsaturated fatty acids (about 93 %), with oleic acid as the most abundant, than saturated fatty acids (about 7 %). A simplified model combining the changing mechanism of the reaction and the triacylglycerols mass transfer limitation successfully describes the kinetics of transesterification. A good agreement between the model and the experiment was proved by the mean relative percentage deviation for the conversion degree of only ± 7.43 % (based on 42 data). The apparent reaction rate constant follows the Arrhenius equation with the activation energy of 51.9 kJ mol−1. The FAME content higher than 96.5 % can be obtained in wide ranges of the catalyst amount (4–10 %) and the reaction time (about 45–70 min). The following conditions were optimum: the reaction temperature of 59.2 °C, the catalyst loading of 9.1 % (based on the oil weight), and the reaction time of 47 min.",
publisher = "Elsevier",
journal = "Fuel",
title = "Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant",
volume = "334",
pages = "126581",
doi = "10.1016/j.fuel.2022.126581"
}
Nježić, Z., Kostić, M. D., Marić, B. D., Stamenković, O., Šimurina, O. D., Krstić, J.,& Veljković, V. B.. (2023). Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant. in Fuel
Elsevier., 334, 126581.
https://doi.org/10.1016/j.fuel.2022.126581
Nježić Z, Kostić MD, Marić BD, Stamenković O, Šimurina OD, Krstić J, Veljković VB. Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant. in Fuel. 2023;334:126581.
doi:10.1016/j.fuel.2022.126581 .
Nježić, Zvonko, Kostić, Milan D., Marić, Boško D., Stamenković, Olivera, Šimurina, Olivera D., Krstić, Jugoslav, Veljković, Vlada B., "Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant" in Fuel, 334 (2023):126581,
https://doi.org/10.1016/j.fuel.2022.126581 . .

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